β-decay spectroscopy of neutron-rich $^{160,161,162}$Sm isotopes

Z. Patel , Zs. Podolyák , P.M. Walker , P.H. Regan , P.A. Söderström , H. Watanabe , E. Ideguchi , G.S. Simpson (1) , S. Nishimura , F. Browne , P. Doornenbal , G. Lorusso , S. Rice , L. Sinclair , T. Sumikama , J. Wu , Z.Y. Xu , N. Aoi , H. Baba , F.L. Bello Garrote , G. Benzoni , R. Daido , Zs. Dombrádi , Y. Fang , N. Fukuda , G. Gey (1) , S. Go , A. Gottardo , N. Inabe , T. Isobe , D. Kameda , K. Kobayashi , M. Kobayashi , T. Komatsubara , I. Kojouharov , T. Kubo , N. Kurz , I. Kuti , Z. Li , H. L Liu , M. Matsushita , S. Michimasa , C.B. Moon , H. Nishizuka , I. Nishizuka , A. Odahara , E. Şahin , H. Sakurai , H. Schaffner , H. Suzuki , H. Takeda , M. Tanaka , J. Taprogge , Zs. Vajta , F.R. Xu , A. Yagi , R. Yokoyama

1 LPSC - Laboratoire de Physique Subatomique et de Cosmologie

Neutron-rich ^160,161,162Sm isotopes have been populated at the RIBF, RIKEN via beta first time. beta-coincident gamma rays were observed in all three isotopes including gamma rays from the isomeric decay of ^160Sm and ^162Sm. The isomers in ^160Sm and ^162Sm have previously been observed but have been populated via beta decay for the first time. The isomeric state in ^162Sm is assigned a [??] configuration based on the decay pattern. The level schemes of ^160Sm and ^162Sm are presented. The ground states in the parent nuclei ^160Pm and ^162Pm are both assigned a [??] configuration based on the population of states in the daughter nuclei. Blocked BCS calculations were performed to further investigate the spin-parities of the ground states in ^160Pm, ^161Pm, and ^162Pm, and the isomeric state in ^162Sm

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

Z. Patel, Zs. Podolyák, P.M. Walker, P.H. Regan, P.A. Söderström, et al.. β-decay spectroscopy of neutron-rich $^{160,161,162}$Sm isotopes. Heavy Ion Accelerator Symposium on Fundamental and Applied Science - 2015, Sep 2015, Canberra, Australia. pp.02002, ⟨10.1051/epjconf/201612302002⟩. ⟨hal-01815316⟩